CN116459887A - Pipetting gun box - Google Patents

Abstract

The application relates to the field of analytical chemistry and provides a pipetting gun box which comprises a placing piece, a limiting piece, a first extraction piece, a second extraction piece and a pressurizing mechanism; the first extraction part is divided into a plurality of filling units, the second extraction part is divided into a plurality of liquid storage units, the filling units are in one-to-one correspondence with the liquid storage units, and the corresponding filling units are communicated with the liquid storage units; the first extraction piece is spliced with the second extraction piece; the placing piece is matched with the limiting piece, the limiting piece is placed on the placing piece, and placing ports for the first extraction piece and the second extraction piece to be inserted are formed in the placing piece and the limiting piece; the pressurizing mechanism for providing pressurized drip is arranged on the limiting piece; after the first extraction piece is inserted into the second extraction piece, the filling unit is in butt joint with the liquid storage unit. The application has the effect of centralized extraction and simultaneously providing pressurized dripping.

Description

Pipetting gun box

Technical Field

The present application relates to the field of analytical chemistry, and in particular to a pipette cartridge.

Background

The solid phase extraction is a sample pretreatment technology developed in recent years and is mainly used for separating, purifying and concentrating samples by combining a liquid-solid extraction column and a liquid chromatography technology, compared with the traditional liquid-liquid extraction method, the recovery rate of the analyte can be improved, the analyte and the interference components can be more effectively separated, the sample pretreatment process is reduced, and the operation is simple, time-saving and labor-saving. Widely applied in the fields of medicine, food, environment, business inspection, chemical industry and the like.

In the solid phase extraction device in the prior art, a plurality of solid phase extraction columns are placed on an extraction frame, the extraction columns are scattered and are not easy to operate, and simultaneously extracted liquid contacts with a storage object to cause tension, so that the collection is difficult, and the extraction efficiency is reduced.

Disclosure of Invention

In order to improve the above problems, the present application provides a pipette gun cartridge that can concentrate extraction while providing pressurized drops.

The application provides a pipetting gun box adopts following technical scheme:

a pipetting gun box comprises a placing piece, a limiting piece, a first extraction piece, a second extraction piece and a pressurizing mechanism; the first extraction part is divided into a plurality of filling units, the second extraction part is divided into a plurality of liquid storage units, the filling units are in one-to-one correspondence with the liquid storage units, and the corresponding filling units are communicated with the liquid storage units; the first extraction piece is spliced with the second extraction piece; the placing piece is matched with the limiting piece, the limiting piece is placed on the placing piece, and placing ports for the first extraction piece and the second extraction piece to be inserted are formed in the placing piece and the limiting piece; the pressurizing mechanism for providing pressurized drip is arranged on the limiting piece; after the first extraction piece is inserted into the second extraction piece, the packing unit is in butt joint with the liquid storage unit, the first extraction piece is placed in the placement piece, the limiting piece is sleeved on the first extraction piece and the second extraction piece through the placement opening and is overlapped on the placement piece, the first extraction piece and the second extraction piece are limited in the placement piece, and the pressurizing mechanism is used for pressurizing and extracting the packing unit.

Through adopting above-mentioned technical scheme, provide the placing and spacing of first extraction spare and second extraction spare by placing spare and locating part, avoid first extraction spare and second extraction spare to appear the crooked condition in position in carrying out the extraction in-process, deposit various packs in the packing unit, make the packing reaction accomplish behind the formation extract, drip to the liquid storage unit of second extraction spare by the extract, the extraction post is replaced to packing unit and liquid storage unit are whole, packing unit sets up a plurality of with liquid storage unit, make simultaneously can carry out the extraction of many places, carry out the overall preparation by first extraction spare and second extraction spare, and be restricted in placing the spare, reach no longer scattered distribution extraction by the extraction post, and adopt concentrated unified extraction mode, improve extraction efficiency, the pressurization mechanism is pressurized the packing unit simultaneously, make the extract receive the atmospheric pressure influence drip in the liquid storage unit, in order to reduce the condition that the extract receives tension influence unable drip.

Optionally, the height of the placing piece is lower than the overall height of the first extraction piece and the second extraction piece after being inserted, and the overall height of the placing piece and the limiting piece after being stacked is higher than the overall height of the first extraction piece and the second extraction piece after being inserted.

Through adopting above-mentioned technical scheme, place the piece height and be less than whole height behind first extraction piece and the grafting of second extraction piece, thereby make first extraction piece and second extraction piece peg graft when depositing in placing the piece, a part exceeds the piece of placing, thereby conveniently take the change, the whole height behind placing piece and the locating part lamination is greater than whole height behind first extraction piece and the grafting of second extraction piece, when making the locating part lid on placing the piece, first extraction piece and second extraction piece are hidden in the locating part, thereby avoid when extraction or use, first extraction piece and second extraction piece are taken out at will, simultaneously also avoid the filler to drop along first extraction piece outer wall when putting into the filler unit, therefore accessible locating part internal wall is blocked.

Optionally, the first extraction element includes a first extraction plate and a first spacer frame; the first interval frame is installed in the first extraction plate, and the first interval frame is formed by a plurality of interval plates alternately, forms a plurality of packing units, every the packing unit corresponds first extraction plate department has all seted up the liquid outlet, every the liquid outlet all with deposit the liquid unit correspondence.

Through adopting above-mentioned technical scheme, with a plurality of packing units of first extraction spare interval through first interval frame, a large amount of packing units can carry out packing and biochemical cultivation of different substances, and when packing needs extraction, the extract can flow to the liquid storage unit from the liquid outlet to collect the analysis.

Optionally, the second extraction element includes a second extraction plate and a second spacer frame; the second interval frame is installed in the second extraction plate, and the second interval frame is formed by splicing a plurality of interval plates, so that a plurality of liquid storage units are formed, and the liquid storage units are in one-to-one butt joint with the filler units.

Through adopting above-mentioned technical scheme, through a plurality of liquid storage units of second extraction board interval with the second interval frame, a large amount of liquid storage units receive the extraction liquid that drops from the filler unit to multiple extraction liquid separates the collection analysis simultaneously.

Optionally, the pressurizing mechanism comprises a vacuum pump, a connecting pipe and a pressurizing cover; the pressurizing cover is covered on the limiting piece; one end of the connecting pipe is connected with the vacuum pump, and the other end of the connecting pipe is connected with the pressurizing cover.

Through adopting above-mentioned technical scheme, after the pressure lid covers the locating part, need pressurize first extraction spare, open the vacuum pump and apply atmospheric pressure to the pressure lid by the connecting pipe, the atmospheric pressure is to the packing unit on the first extraction spare of first extraction spare oppression to the extract extrusion liquid outlet that forms in with the packing, adopt this pressurizing mechanism, can unify the pressurization to the packing in every packing unit, improve extraction efficiency.

Optionally, the pressurizing cover is further provided with a sealing ring.

Through adopting above-mentioned technical scheme, set up the sealing washer and can reduce to have the space between locating part and the pressurization lid, lead to the atmospheric pressure that applys to reduce.

Optionally, the pressurizing mechanism comprises a support member, a first sliding member, a second sliding member and a pressurizing member; the supporting piece is detachably connected with the limiting piece; the first sliding piece is in sliding connection with the supporting piece; the second sliding piece is connected with the second sliding piece in a sliding way, and a pressurizing opening is formed in the second sliding piece; the pressurizing piece penetrates through the pressurizing opening and is connected with the packing unit in an inserting mode.

Through adopting above-mentioned technical scheme, first slider slides along the support piece, and the second slider then can follow first slider and remove, and first slider moves the in-process along the support piece, drives second slider, pressurization spare along support piece horizontal migration, and thereby the second slider then can follow first slider and remove can realize driving the effect that the pressurization spare removed to each direction in the coplanar to the adaptation removes to corresponding packing unit.

Optionally, the pressurizing piece comprises a pressurizing column, a pressing plate and a pressurizing head; the pressing plate is arranged at one end part of the pressurizing column, and the pressurizing head is arranged at the other end part of the pressurizing column; the pressurizing head is matched with the packing unit, and one end of the pressurizing column, provided with the pressurizing head, penetrates through the pressurizing opening and extends towards the packing unit.

Through adopting above-mentioned technical scheme, carry out spacingly through the pressurization mouth, make the pressurization post can follow the upper and lower extrusion of pressurization mouth, the wall of pressurization head laminating packing unit department makes the pressurization head get into after the packing unit, along packing unit extrusion air to the liquid outlet to make the extract receive atmospheric pressure influence to extrude from the liquid outlet.

Optionally, the pressurizing mechanism is provided with a locking member for fixing the positions of the first sliding member and the second sliding member.

By adopting the technical scheme, the locking piece can be used for fixing the position of the pressing piece.

Optionally, the locking piece comprises a first clamping plate, a second clamping plate, a sliding plate, a threaded part and a tight supporting part; the sliding plate is arranged on the second sliding piece; the first clamping plate is arranged at one side part of the first sliding piece, which is far away from the second sliding piece, and the sliding plate is positioned between the first clamping plate and the first sliding piece; the second clamping plate is connected with the first clamping plate, and the second clamping plate extends to the supporting piece; the first clamping plate, the second clamping plate and the first sliding piece are provided with threaded holes, and the threaded parts penetrate through the first sliding piece, the first clamping plate and the second clamping plate through the threaded holes; the two abutting parts are arranged and are both arranged on the threaded parts, one abutting part is positioned between the first clamping plate and the second clamping plate, and the other abutting part is positioned below the second clamping plate.

Through adopting above-mentioned technical scheme, screw thread portion is rotatory to make to support tight portion to first splint and second splint removal along the screw hole to make first splint cooperate the first slider to press from both sides tight sliding plate, fix the second slider through the sliding plate, the second splint contacts with support piece, and press from both sides braced frame between first slider and second splint, when making first slider need slide along support piece, frictional force increases, in order to reach the fixed effect of clamp.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the placing part and the limiting part provide the placing and limiting of the first extraction part and the second extraction part, so that the situation that the positions of the first extraction part and the second extraction part are inclined in the extraction process is avoided, various fillers are stored in the filler unit, after the filler reaction is completed to form an extraction liquid, the extraction liquid drops into the liquid storage unit of the second extraction part, the filler unit and the liquid storage unit are integrally used for replacing the extraction column, a plurality of the filler units and the liquid storage unit are arranged, so that extraction can be performed at a plurality of places at the same time, the first extraction part and the second extraction part are integrated and limited in the placing part, the scattered extraction of the extraction column is avoided, the extraction efficiency is improved by adopting an extraction mode of centralized and unified extraction, and meanwhile, the pressurizing mechanism pressurizes the filler unit, so that the extraction liquid drops into the liquid storage unit under the influence of air pressure, and the condition that the extraction liquid cannot drop under the influence of tension is reduced;

2. after the pressing cover covers the limiting piece, the first extraction piece is required to be pressed, the vacuum pump is opened, air pressure is applied to the pressing cover by the connecting pipe, the air pressure presses the first extraction piece to press the packing units on the first extraction piece, so that extraction liquid formed in the packing is extruded into the liquid outlet, and the pressing mechanism can uniformly press the packing in each packing unit, so that the extraction efficiency is improved;

3. the first sliding piece slides along the supporting piece, the second sliding piece can move along the first sliding piece, the second sliding piece and the pressurizing piece are driven to horizontally move along the supporting piece in the moving process of the first sliding piece along the supporting piece, and the second sliding piece can move along the first sliding piece so as to realize the effect of driving the pressurizing piece to move in all directions in the same plane, so that the pressurizing piece can be adaptively moved to a corresponding filling unit;

4. the screw thread portion is rotatory to make to support tight portion to first splint and second splint to make first splint cooperate the first slider to press from both sides tight sliding plate, fix the second slider through the sliding plate, the second splint contacts with support piece, and presss from both sides braced frame between first slider and second splint, when making first slider need slide along support piece, frictional force increases, in order to reach the effect of pressing from both sides tightly fixedly.

Drawings

FIG. 1 is a schematic view of an exploded view of a pipette cartridge according to one embodiment of the present application;

FIG. 2 is a schematic perspective view showing a pipette gun case in a superposed state according to an embodiment of the present application;

FIG. 3 is another perspective view of a pipette gun cartridge according to another embodiment of the present application;

FIG. 4 is a schematic perspective view of a pressing member according to another embodiment of the present application;

FIG. 5 is a schematic view of a further perspective view of a pipette gun cartridge according to a further embodiment of the present application;

FIG. 6 is a schematic cross-sectional view of a retaining member according to yet another embodiment of the present application;

the marks in the drawings are: 1. the placing member, 2, the stopper, 3, the first extraction member, 31, the packing unit, 32, the first extraction plate, 33, the first spacer frame, 34, the liquid outlet, 4, the second extraction member, 41, the liquid storage unit, 42, the second extraction plate, 43, the second spacer frame, 5, the pressurizing mechanism, 511, the vacuum pump, 512, the connecting pipe, 513, the pressurizing cover, 514, the sealing ring, 521, the supporting member, 522, the first slider, 523, the second slider, 524, the pressurizing member, 5241, the pressurizing column, 5242, the pressing plate, 5243, the pressurizing head, 525, the pressurizing port, 526, the locking member, 5261, the first clamping plate, 5262, the second clamping plate, 5263, the slider, 5264, the screw portion, 5265, the abutting portion, 5266, and the screw hole.

Detailed Description

Additional advantages and capabilities of the present application will be readily apparent to those skilled in the art from the following detailed description of the present application. The present application may be embodied or applied in other specific forms and details, and various modifications and alterations may be made to the details of the present application from different points of view and application without departing from the spirit of the present application. It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other.

The embodiments of the present application will be described in detail below with reference to the drawings so that those skilled in the art to which the present application pertains can easily implement the same. This application may be embodied in many different forms and is not limited to the embodiments described herein.

In the description of the present application, reference to the terms "one embodiment," "some embodiments," "examples," "particular examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. Furthermore, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the various embodiments or examples, and features of the various embodiments or examples, presented herein may be combined and combined by those skilled in the art without conflict.

Furthermore, the terms "first," "second," and the like, are used merely for purposes of referring to objects, and are not intended to indicate or imply relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the context of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Throughout the specification, when a device is said to be "connected" to another device, this includes not only the case of "direct connection" but also the case of "indirect connection" with other elements interposed therebetween. In addition, when a certain component is said to be "included" in a certain device, unless otherwise stated, other components are not excluded, but it means that other components may be included.

The present application is described in further detail below with reference to fig. 1-6.

The embodiment of the application discloses a pipetting gun box.

Referring to fig. 1 and 2, a pipette gun cartridge according to an embodiment of the present disclosure is shown, including a placement member 1, a stopper 2, a first extraction member 3, a second extraction member 4, and a pressurizing mechanism 5; placing piece 1 and locating part 2 assorted, the assorted is placed piece 1 and the contact surface shape size of locating part 2 both unanimous promptly, and locating part 2 is placed on placing piece 1, place piece 1 and locating part 2 all offer the mouth of placing that supplies first extraction piece 3 and second extraction piece 4 pegged graft, place piece 1 can adopt outer box body, locating part 2 can adopt spacing frame, stably deposit first extraction piece 3 through outer box body, reduce first extraction piece 3 and receive the condition that the impact damages or extract falls out, spacing frame then can cover first extraction piece 3 and second extraction piece 4, avoid crookedly.

The first extraction piece 3 and the second extraction piece 4 are detachably connected, the first extraction piece 3 and the second extraction piece 4 can be inserted or placed in the second extraction piece 4, the first extraction piece 3 is uniformly divided into the filler units 31, the second extraction piece 4 is provided with a plurality of liquid storage units 41, the filler units 31 corresponding to the liquid storage units 41 one by one and the liquid storage units 41 are communicated, the first extraction piece 3 can adopt a first extraction box, the second extraction piece 4 can adopt a second extraction box, the size of the second extraction box is larger than that of the first extraction box, the first extraction box can be inserted into the second extraction box, the filler units 31 are abutted against the liquid storage units 41, and when different extraction fillers are placed in the filler units 31 of the first extraction box one by one, the extraction liquid is produced through catalysis or other filler reactions, and enters the liquid storage units 41, so that the extraction liquid enters the liquid storage units 41 in the range of the placement piece 1 for uniformly concentrating the plurality of filler units 31.

However, since the liquid is not in contact with the packing unit 31 and is under tension, it is difficult to enter the liquid storage unit 41, and the first extraction cartridge is pressurized by the pressurizing mechanism 5.

The pressurizing mechanism 5 is connected with the limiting piece 2, the pressurizing end of the pressurizing mechanism 5 is connected with the packing unit 31, the first extraction piece 3 is placed in the placing piece 1, the limiting piece 2 is sleeved on the first extraction piece 3 and the second extraction piece 4 through the placing opening and is overlapped on the placing piece 1, the first extraction piece 3 and the second extraction piece 4 are limited in the placing piece 1, after the first extraction box is inserted into the second extraction box, the packing unit 31 is located in the liquid storage unit 41, and the pressurizing mechanism 5 is used for pressurizing and extracting the packing unit 31.

The first extraction element 3 includes a first extraction plate 32 and a first spacing frame 33, the first spacing frame 33 is mounted on the first extraction plate 32, and the first spacing frame 33 is formed by a plurality of spacing plates, so as to form a plurality of packing units 31, each packing unit 31 is provided with a liquid outlet 34 corresponding to a position on the first extraction plate 32, each liquid outlet 34 corresponds to a liquid storage unit 41 of the second extraction element 4, the first extraction plate 32 can adopt square, round and other plate structures, the first spacing frame 33 is formed into a plurality of packing units 31 by a plurality of spacing plates, the space of each packing unit 31 can be cylindrical and quadrangular, and the space of each packing unit 31 is relatively independent, so that different packing is prevented from contacting each other to form different extraction liquids.

Wherein the second extraction member 4 comprises a second extraction plate 42 and a second spacer frame 43; the second spacing frame 43 is installed on the two extraction plates, the second spacing frame 43 is formed by splicing a plurality of spacing plates to form a plurality of liquid storage units 41, the liquid storage units 41 can be used for butt joint of the filler units 31 of the first extraction piece 3 one by one, the second spacing frame 43 is folded along the corners of the second extraction plate 42, then the middle space is separated to form a plurality of liquid storage units 41, the specific external shape is determined by the shape of the second extraction plate 42, the shape of the second extraction plate 42 can be round, square and the like, the liquid storage units 41 formed at intervals are matched with the corresponding filler units 31, the matching means is that the sizes, the sizes and the shapes of the liquid storage units 41 and the filler units 31 are consistent, so that all the filler units 31 can be butt jointed one by one, and extraction liquid drops generated by different filler units 31 fall into the corresponding liquid storage units 41 for separation collection and analysis.

Referring to fig. 2, the height of the placement element 1 is lower than the overall height of the first extraction element 3 and the second extraction element 4 after being inserted, and the overall height of the placement element 1 and the limiting element 2 after being stacked is higher than the overall height of the first extraction element 3 and the second extraction element 4 after being inserted.

The height of the placing piece 1 is lower than the integral height of the first extraction piece 3 and the second extraction piece 4 after being inserted, so that when the first extraction piece 3 and the second extraction piece 4 are inserted and stored in the placing piece 1, a part of the placing piece is higher than the placing piece 1, so that the placing piece is convenient to take and replace, the integral height of the placing piece 1 and the limiting piece 2 after being overlapped is higher than the integral height of the first extraction piece 3 and the second extraction piece 4 after being inserted, when the limiting piece 2 is covered on the placing piece 1, the first extraction piece 3 and the second extraction piece 4 are hidden in the limiting piece 2, and therefore, the first extraction piece 3 and the second extraction piece 4 are prevented from being taken out at will during extraction or use, and meanwhile, the filler is prevented from falling along the outer wall surface of the first extraction piece 3 during the process of placing the filler unit 31, and therefore, the inner wall surface of the limiting piece 2 can be blocked.

Meanwhile, the top surface of the limiting piece 2 is higher than the top surface of the first extracting piece 3, so that a space exists between the top surface of the first extracting piece 3 and the top surface of the limiting piece 2, and the pressurizing mechanism 5 can conveniently pressurize the packing unit 31.

Referring to fig. 2, wherein the pressurizing mechanism 5 includes a vacuum pump 511, a connection pipe 512, and a pressurizing cover 513; the pressurizing cover 513 covers the limiting piece 2; one end of the connecting pipe 512 is connected with the vacuum pump 511, and the other end is connected with the pressurizing cover 513; the pressurizing cover 513 covers the top surface of the limit frame, the pressurizing cover 513 has a size consistent with that of the limit frame, the whole limit frame can be covered, and the connecting pipe 512 can be a metal pipe or a hose.

When pressurization is needed, the vacuum pump 511 is turned on, the vacuum pump 511 increases the air pressure in the packing unit 31 of the first extraction member 3 below the pressurization cover 513 through the connecting pipe 512, so that the packing is affected by the air pressure to form an extraction liquid to drop from the liquid outlet 34, in the pressurization process, an operator can manually prop against the outside of the pressurization cover 513 to avoid being lifted by pressure, or use an external weight to compress, or use a material with a certain compression effect such as metal, calcium carbonate and silicon dioxide composition for the pressurization cover 513, or use a connection mode of the pressurization cover 513 and the limiting member 2 as a clamping connection, and set a buckle on the limiting member 2 to buckle the pressurization cover 513 to avoid the lifting of the pressurization cover 513.

Wherein the pressurizing cover 513 is also provided with a sealing ring 514; the sealing ring 514 is positioned at the bottom of the pressurizing cover 513, and the sealing ring 514 reduces the gap between the limiting piece 2 and the pressurizing cover 513, so that the influence on the air pressure is avoided.

Specifically, after the pressing cover 513 covers the limiting member 2, the vacuum pump 511 is opened, air pressure is applied to the pressing cover 513 by the connecting pipe 512, the air pressure presses the first extraction member 3 against the packing units 31 on the first extraction member 3, so that the extraction liquid formed in the packing is extruded into the liquid outlet 34, and the packing in each packing unit 31 can be uniformly pressed by adopting the pressing mechanism 5, so that the extraction efficiency is improved.

Referring to fig. 3 and 4, a pressurizing mechanism 5 according to another embodiment of the present disclosure is shown, and since different times of extraction of the filler are different, when it is necessary to separately implement the pressurizing, the pressurizing mechanism 5 as follows may be employed:

the pressurizing mechanism 5 includes a support 521, a first slider 522, a second slider 523, and a pressurizing member 524; the supporting piece 521 is detachably connected with the limiting piece 2; the first slider 522 is slidably coupled to the support 521; the second sliding piece 523 is connected with the second sliding piece 523 in a sliding way, and the second sliding piece 523 is provided with a pressurizing opening 525; the pressurizing member 524 is inserted into the packing unit 31 through the pressurizing port 525.

Wherein, support piece 521 can adopt braced frame, and braced frame top's side has seted up the groove that slides, braced frame is provided with two, installs in proper order in the both sides of locating part 2 top surface, and two grooves that slide set up relatively, first slider 522 can adopt the rail that slides, and the rail that slides through the groove that slides along braced frame, and the rail that slides and the groove that slides are on same horizontal plane, and both are 90 degrees contained angles, and second slider 523 can adopt the slider, and offers the pressurization mouth 525 that supplies the pressure piece 524 to peg graft on the slider.

Specifically, the sliding rail can slide along the top of the supporting frame through the sliding groove, the sliding block can move along the sliding rail, the sliding block and the pressurizing piece 524 are driven to horizontally move along the sliding groove in the sliding groove moving process, the sliding block can move along the sliding rail in the left-right direction from the view of fig. 3, and the sliding block can move back-forth from the view of fig. 3, so that the action of driving the pressurizing piece 524 to move back-forth and left-right can be realized, and the pressurizing piece can be adapted to move to the corresponding filling unit 31.

Referring to fig. 4, wherein the pressurizing member 524 includes a pressurizing column 5241, a pressurizing plate 5242, and a pressurizing head 5243; the pressing plate 5242 is mounted on one end of the pressing column 5241, and the pressing head 5243 is mounted on the other end of the pressing column 5241; the pressurizing head 5243 is matched with the inner wall surface of the packing unit 31, one end of the pressurizing head 5243 of the pressurizing column 5241 penetrates through the pressurizing opening 525 to extend towards the packing unit 31, one end far away from the packing unit 31 is provided with the pressing plate 5242, the size of the pressing plate 5242 is larger than that of the pressurizing opening 525, so that the pressurizing column 5241 is clamped, the pressurizing opening 525 is used for limiting, the pressurizing column 5241 can be vertically extruded along the pressurizing opening 525, the pressurizing head 5243 can adopt a rubber plug, the shape of the rubber plug is consistent with that of the packing unit 31, the rubber plug can be attached to the wall surface of the packing unit 31, after the rubber plug enters the packing unit 31, the rubber plug is extruded to the liquid outlet 34 along the packing unit 31, and therefore the extracting liquid is extruded from the liquid outlet 34 under the influence of air pressure.

After the pressurization is finished, the pressurization column 5241 can be taken out from the packing unit 31 along the pressurization opening 525, then moves back and forth along the sliding rail, and moves left and right along the supporting frame to adjust the position of the pressurization piece 524, and can move to other packing units 31 needing pressurization for pressurization.

Referring to fig. 5 and 6, a pressing mechanism 5 and a locking member 526 according to another embodiment of the present disclosure are shown, where the pressing mechanism 5 is provided with the locking member 526 for fixing the positions of the first sliding member 522 and the second sliding member 523, and when the pressing member 524 needs to be pressed, since the first sliding member 522 and the second sliding member 523 are still in a slidable state during the pressing process, when the pressing member 524 is stressed, if the stress is unbalanced, the positions of the first sliding member 522 and the second sliding member 523 are offset, and the pressing process is affected, so that the locking member 526 is provided to lock the positions of the first sliding member 522 and the second sliding member 523, so as to reduce the phenomenon that the position offset affects the pressing process.

Wherein, the locking member 526 includes a first clamping plate 5261, a second clamping plate 5262, a sliding plate 5263, a threaded portion 5264 and a tightening portion 5265; the threaded portion 5264 may be a bolt or a screw, the bolt may be a butterfly bolt so as to be provided with a fulcrum, the bolt is conveniently locked by the fulcrum, the sliding plate 5263 is fixedly mounted on the second sliding member 523, the first clamping plate 5261 is mounted on a side surface of the first sliding member 522 far away from the second sliding member 523, and the sliding plate 5263 is located between the first clamping plate 5261 and the first sliding member 522. The second clamp plate 5262 is connected to the first clamp plate 5261, and the support 521 is located between the second clamp plate 5262 and the first clamp plate 5261. The first clamping plate 5261, the second clamping plate 5262 and the first sliding member 522 are provided with threaded holes 5266, and bolts penetrate through the first sliding member 522, the first clamping plate 5261 and the second clamping plate 5262 through the threaded holes 5266.

The abutting portion 5265 is provided with two abutting portions, and is mounted on the bolt and divided into a first abutting plate and a second abutting plate, the first abutting plate is located between the first clamping plate 5261 and the second clamping plate 5262, the second abutting plate is located below the second clamping plate 5262, and the distance from the first abutting plate to the first clamping plate 5261 is the same as the distance from the second abutting plate to the second clamping plate 5262.

Specifically, the second sliding piece 523 adopts the sliding block, the second sliding piece 523 can adopt the sliding rail, the supporting piece 521 can adopt the supporting frame, the screw thread direction of the bolt and the threaded hole 5266 is set according to the requirement, the first rotating direction is adopted in the embodiment, the bolt can move upwards along the first rotating direction, when the pressurizing piece 524 is required to slide to the designated position, the operator rotates the bolt along the first rotating direction, the bolt rotates along the threaded hole 5266, thereby driving the first resisting plate and the second resisting plate to move upwards, the first resisting plate and the second resisting plate simultaneously move upwards until the first clamping plate 5261 and the second clamping plate 5262 are abutted, the first clamping plate 5261 and the second clamping plate 5262 simultaneously receive the upward abutting force of the sliding plate 5263, the first clamping plate 5261 clamps the sliding plate 5263 between the first clamping plate 5261 and the sliding rail, the sliding block cannot move along the sliding rail, the second clamping plate 5262 contacts the supporting frame between the sliding rail and the second clamping plate 5262, when the sliding rail is required to slide along the supporting frame, the sliding rail slides, the friction force is increased, the clamping effect of the pressurizing piece is reduced, and the pressurizing stability is improved in the pressurizing process.

When the locking function is required to be released, the pressing member 524 is movable, the operator rotates the bolt in the opposite direction to the first rotation direction, so that the bolt drives the first and second retaining plates to release the first and second clamping plates 5261 and 5262, and the pressing member 524 can move along the sliding rail through the sliding block, and the sliding rail moves along the supporting frame to adjust the position of the pressing member 524.

Wherein, the first clamp plate 5261 is close to the one side of rail that slides to and the second clamp plate 5262 is close to first clamp plate 5261 one side all and is provided with the skid resistant course, and skid resistant department can adopt the rubber layer for increase the frictional force that the mutual contact produced at the clamping process, further improve the clamping effect.

The embodiments of this embodiment are all preferred embodiments of the present application, and are not intended to limit the scope of the present application, in which like parts are denoted by like reference numerals. Therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (10)

1. The pipetting gun box is characterized by comprising a placement piece (1), a limiting piece (2), a first extraction piece (3), a second extraction piece (4) and a pressurizing mechanism (5); the first extraction piece (3) is divided into a plurality of filling units (31), the second extraction piece (4) is divided into a plurality of liquid storage units (41), the filling units (31) are in one-to-one correspondence with the liquid storage units (41), and the corresponding filling units (31) are communicated with the liquid storage units (41); the first extraction piece (3) is spliced with the second extraction piece (4); the placing piece (1) is matched with the limiting piece (2), the limiting piece (2) is placed on the placing piece (1), and the placing piece (1) and the limiting piece (2) are provided with placing ports for inserting the first extraction piece (3) and the second extraction piece (4); the pressurizing mechanism (5) for providing pressurized drip is arranged on the limiting piece (2); after the first extraction piece (3) is spliced with the second extraction piece (4), the packing unit (31) is in butt joint with the liquid storage unit (41), the first extraction piece (3) is placed in the placement piece (1), the limiting piece (2) is sleeved on the first extraction piece (3) and the second extraction piece (4) through the placement opening, the first extraction piece (3) and the second extraction piece (4) are stacked on the placement piece (1), the packing unit (31) is limited in the placement piece (1), and the pressurizing mechanism (5) performs pressurized extraction on the packing unit (31).

2. A pipette gun box as claimed in claim 1, characterized in that the height of the placement element (1) is lower than the overall height of the first extraction element (3) and the second extraction element (4) after insertion, and the overall height of the placement element (1) and the limiting element (2) after lamination is higher than the overall height of the first extraction element (3) and the second extraction element (4) after insertion.

3. A pipette gun cartridge as claimed in claim 1, characterized in that the first extraction element (3) comprises a first extraction plate (32) and a first spacer frame (33); the first spacing frame (33) is installed in the first extraction plate (32), the first spacing frame (33) is formed by a plurality of spacing plates in an alternating mode, a plurality of filling units (31) are formed, each filling unit (31) is correspondingly provided with a liquid outlet (34) at the first extraction plate (32), and each liquid outlet (34) is correspondingly provided with the liquid storage unit (41).

4. A pipette gun cartridge as claimed in claim 1, characterized in that the second extraction element (4) comprises a second extraction plate (42) and a second spacer frame (43); the second spacing frame (43) is installed in the second extraction plate (42), and the second spacing frame (43) is formed by splicing a plurality of spacing plates to form a plurality of liquid storage units (41), and the liquid storage units (41) are in one-to-one butt joint with the filler units (31).

5. A pipette gun cartridge as claimed in claim 1, characterized in that the pressurizing mechanism (5) comprises a vacuum pump (511), a connecting tube (512) and a pressurizing cap (513); the pressurizing cover (513) is covered on the limiting piece (2); one end of the connecting pipe (512) is connected with the vacuum pump (511), and the other end is connected with the pressurizing cover (513).

6. A pipette gun magazine as claimed in claim 5, characterised in that the pressure cap (513) is further provided with a sealing ring (514).

7. A pipette gun cartridge as claimed in claim 1, characterized in that the pressurizing mechanism (5) comprises a support (521), a first slide (522), a second slide (523) and a pressurizing member (524); the supporting piece (521) is detachably connected with the limiting piece (2); -said first slider (522) is slidingly connected to said support (521); the second sliding piece (523) is in sliding connection with the second sliding piece (523), and a pressurizing opening (525) is formed in the second sliding piece (523); the pressurizing piece (524) penetrates through the pressurizing opening (525) and is connected with the packing unit (31) in an inserting mode.

8. The pipette gun cartridge as recited in claim 7 wherein the pressurizing member (524) comprises a pressurizing column (5241), a pressure plate (5242) and a pressurizing head (5243); the pressing plate (5242) is mounted on one end part of the pressing column (5241), and the pressing head (5243) is mounted on the other end part of the pressing column (5241); the pressurizing head (5243) is matched with the packing unit (31), and one end of the pressurizing column (5241) provided with the pressurizing head (5243) penetrates through the pressurizing opening (525) to extend towards the packing unit (31).

9. A pipette gun magazine as claimed in claim 7, characterized in that the pressurizing mechanism (5) is provided with a locking member (526) for fixing the positions of the first slider (522) and the second slider (523).

10. The pipette gun cartridge as recited in claim 9 wherein the locking member (526) comprises a first clamping plate (5261), a second clamping plate (5262), a slide plate (5263), a threaded portion (5264) and a tightening portion (5265); the sliding plate (5263) is mounted on the second sliding piece (523); the first clamping plate (5261) is mounted on one side of the first slider (522) away from the second slider (523), and the slider (5263) is located between the first clamping plate (5261) and the first slider (522); the second clamp plate (5262) is connected to the first clamp plate (5261), and the second clamp plate (5262) extends to the support (521); the first clamping plate (5261), the second clamping plate (5262) and the first sliding piece (522) are provided with threaded holes (5266), and the threaded portions (5264) penetrate through the first sliding piece (522), the first clamping plate (5261) and the second clamping plate (5262) through the threaded holes (5266); the abutting parts (5265) are arranged at two parts, which are both arranged at the threaded parts (5264), one abutting part (5265) is positioned between the first clamping plate (5261) and the second clamping plate (5262), and the other abutting part (5265) is positioned at one end, far away from the first clamping plate (5261), of the second clamping plate (5262).